/ Dictionary / Index O overseer: Meaning and Definition of Find definitions for: o•ver•se•er Pronunciation: (ō'vur-sē"ur, -sēr"), [key] — n. a person who oversees; supervisor; manager: the overseer of a plantation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overseer (Thesaurus) oversee oversell Related Content Daily Word Quiz: obtrusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language